{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["geographic distribution", "location contains"], "input": "Alan B. Krueger , an economist at Princeton , studied the fast-food industry in New Jersey and Pennsylvania after New Jersey raised its wages and Pennsylvania did not ."}
{"geographic distribution": [], "location contains": [{"subject": "New Jersey", "object": "Princeton"}]}